Adsorption dryers of the DTS series are designed for drying compressed air and nitrogen to pressure dew points of -25°C to -70°C (depending on the design) at operating pressures of 4 bar to 11 bar (up to 63 bar on request). 

The desiccant has a high drying capacity for mois-ture and a long service life of several years. This ensures permanently low and stable pressure dew points.

For vessel switch-over two 4/2-way valves are used and are linked by a drive shaft to one com-mon pneumatic actuator. The actuator is double acting and mounted on the inlet valve. 

The expansion (before starting regeneration) and the pressurisation (after the regeneration) are carried out via separately controlled pneumatic actuated seat angle valves. 

At the expansion outlet a silencer is used for effective reduction of the expansion noise.

The regeneration flow path is controlled by a butterfly valve with pneumatic actuator and it is secured by limit switches.

For this dryer size the filters are not included in the scope of supply of the dryer.

But pre filters (fine filters) that prevent solid particles (< 0.01 µm) and liquid contaminants (< 0.01 mg/m³) from entering should be installed upstream of the dryers in order to increase the service life of the desiccant. An afterfilter (general purpose filter) should be installed downstream of the dryer in order to prevent possible desiccant dust (< 1 µm) from entering.

The dryers comply with the requirements of the Pressure Equipment Directive 97/23/EC, and have the CE marking of this European directive.